Clarksville Montgomery County Crime Stoppers allows people to anonymously submit tips to crimes they may have witnessed. Here are several ways you can submit a tip to Crime Stoppers.
Ayrika Whitney/USA TODAY NETWORK - Tennessee

The investigation was ongoing Thursday, said MCSO spokesman Sandra Brandon, and criminal charges may be pending.

“This type of activity cannot and will not be tolerated,” Sheriff John Fuson said earlier. “We will pick up right where we left off last school year, and prosecute each and every threat to the fullest extent while making examples of those who threaten the safety of our schools.”

Reach Chris Smith at chrissmith@theleafchronicle.com, 931-245-0282 or on Twitter @cssmithwrites.